EP0906216A1 - Bearing support structure for a turret in mooring system and method for its installation - Google Patents
Bearing support structure for a turret in mooring system and method for its installationInfo
- Publication number
- EP0906216A1 EP0906216A1 EP97930112A EP97930112A EP0906216A1 EP 0906216 A1 EP0906216 A1 EP 0906216A1 EP 97930112 A EP97930112 A EP 97930112A EP 97930112 A EP97930112 A EP 97930112A EP 0906216 A1 EP0906216 A1 EP 0906216A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turret
- bearing
- ring
- vessel
- race
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
- B63B21/507—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/30—Ships, e.g. propelling shafts and bearings therefor
Definitions
- This invention relates generally to mooring systems, and more particularly to a bearing support structure for a turret on a vessel which weathervanes about the turret.
- an upper bearing arrangement for a turret mounted for relative rotation within the well of a vessel is shown in Figures 5A and 5B and described in column 11 , line 57 through column 12, line 60.
- the bearing structure has a pair of bearing races with roller bearings positioned between the bearing races.
- the lower or outer bearing race is secured to the vessel, and the upper or inner bearing race is secured to the turret.
- the turret may tilt relative to the vessel when a load deflection occurs where, for example, the turret mooring lines on only one side of the turret are under tension.
- Tilting between the upper and lower races results in an edge loading of the rollers between the races. Such a misalignment of the rollers results in undesirable uneven wear and reduced life of the bearing. Tilting forces on the turret are unavoidable. Nevertheless, it is highly desirable that any tilting action between the turret and vessel be limited.
- An object of the invention is to provide a stiff upper bearing structure or joint for a turret mounted for relative relation in the well of a vessel to minimize relative tilting rotation of bearing components between the turret and body of the vessel.
- Another object of the invention is to provide such a turret bearing structure having a pair of opposed bearing races with roller bearings therebetween that are maintained in alignment even with relative tilting rotation between the turret and vessel for minimizing wear of the roller bearings.
- Another object of the invention is to provide a filler material for an annular clearance resulting from tolerances between the turret and a bearing retainer ring to stiffen the bearing structure.
- Another object of the invention is to provide a bearing arrangement and a method for installing a turret in a well of a vessel followed by installing a bearing system over and around the cylindrical turret onto the vessel for rotatably coupling the turret and the vessel.
- the present invention is an improvement over the upper bearing structure shown in Figures 5A and 5B of U.S. Patent No. 5,356,321.
- a bearing support structure is provided in this invention for a turret assembly in which the turret assembly is rotatably coupled to the vessel by means of an axial bearing.
- the present invention provides for stiffening an upper bearing joint between the turret and vessel and for resistance to such tilting rotation in order to limit the relative tilting rotation between opposed bearing races secured to the vessel and turret.
- the bearing structure includes a bearing assembly mounted on a bearing support ring secured to the vessel within the well of the vessel and has upper and lower bearing races with roller bearings between the races. The lower race is secured by suitable fasteners to the bearing support ring.
- Mounting means are provided for mounting the upper bearing race to the turret in order substantially to minimize any rotational tilting between the upper and lower bearing
- the mounting means comprises an upper bearing retainer ring which extends about a vertical extension of the turret (called a turret ring).
- the retainer ring is positioned over the upper bearing race.
- the turret ring has a lower upwardly facing shoulder; the retainer ring is seated on the shoulder.
- An upper annular groove in the turret ring above the annular shoulder receives a segmented key which simultaneously fits over the retainer ring.
- the retainer ring has an upper end portion spaced radially from the turret ring to define an annular clearance space therebetween.
- Filler material such as epoxy grouting material, is positioned in the annular space to provide a tight fit.
- Fasteners such as threaded studs, extend through the segmented key and the retainer ring and are threaded within intemally threaded openings in the upper bearing race.
- the segmented keys are radially inward against the bottom of the annular groove of the turret ring to remove radial clearance between the inside diameter of the keys and the outside diameter of the turret groove.
- Other fasteners are provided for rotational coupling of the upper bearing race to the lower bearing race while simultaneously securing the lower bearing race to the bearing support ring of the vessel.
- the thickness of the segmented keys is dimensioned to provide a near zero clearance above the key and below the annular shoulder of the turret ring.
- the rotational center of the retainer ring and upper bearing race is located below the segmented key and above the annular shoulder on the turret ring. Such an arrangement stiffens the bearing joint. Any upward movement of the turret is reacted by the turret shoulder against the retainer ring and the fasteners.
- the mounting arrangement of the invention of the invention allows the turret to be first installed in the well of the vessel, followed by lowering the axial bearing components downwardly and around the turret for subsequent securement of the upper bearing race to the turret, securement of the lower bearing race to the vessel and rotatable coupling of the upper and lower bearing races. Also the arrangement allows the removal of the bearing from the turret without removal of the turret from the vessel.
- Figure 1 is a sectional view of an upper bearing structure for a turret mounted within the well of a vessel and rotatably supported by the vessel;
- Figure 1A is a sectional view of the upper bearing structure of Figure 1 but further illustrating a hydraulic turret drive assembly for turning the vessel about the turret;
- Figure 2 is a top plan of the upper bearing structure shown in Figure 1 ;
- Figure 3 is an enlarged view of a part of Figure 1 showing the bearing assembly secured to the turret and including a pair of opposed bearing races with roller bearings therebetween;
- Figure 4 is an exaggerated diagrammatic view showing tilting rotation of the turret with the opposed bearing races in alignment
- Figure 5 is a diagrammatic view similar to Figure 4 but showing an exaggerated view of the bearing races misaligned with the upper bearing race supported on an edge of the roller bearings;
- Figure 6 is an illustration in cross section of a bearing assembly which is arranged to be lowered about an installed turret. Description of the Preferred Embodiment of the Invention Referring now to the drawings for a better understanding of this invention and more particularly to Figures 1-3, numerals similar to the numerals for Figures 5A and 5B of U.S. Patent No. 5,356,321 are provided for similar elements with the addition of the letter "A”.
- a turret 10A is mounted within a well 50A defined by the body of the vessel. Turret
- Turret 10A has a plurality of anchor lines (not shown) connected thereto which may be anchored to the sea floor. Turret 10A is not free to rotate substantially, because in operation after anchoring to the sea floor, it is substantially fixed to the sea floor.
- the vessel, including well 50A may weathervane about turret 10A under the influence of weather, sea current and wave forces.
- An upper turret support structure is shown at 56A secured to well 50A and includes a horizontal bearing mounting plate 788A.
- An upper bearing assembly 760A for turret 10A of this invention is supported on bearing support plate 788A.
- a support bracket 773A is provided for the turret upper bearing assembly 760A.
- Support bracket 773A may be moved radially inwardly a small amount during installation of turret 10A in the well 50A by means of adjustment stud 770A which is threaded within the base plate 799A. Adjustment stud 770A engages the outer side of alignment plate 798A which is carried by base plate 799A. Base plate 798A can be moved radially when stud 778A is not secured tightly to the base plate 799A via a threaded hole in plate 799A. The inner radial side of alignment plate 798A engages support bracket
- SUBSTlTuTE SHEET (RULE 26) plurality of alignment plates 798A mounted via support plates 772A about the annulus between well 50A and turret 10A.
- the movement or adjustment of support bracket 773A produces installation radial adjustment capability of turret bearing assembly 760A relative to well 50A and the vessel.
- a bearing assembly ring 797A is secured (e.g., by welding) to bracket 773A.
- a lower spring stack 791A is placed between support bracket 773A and the bearing mount structure 788A. Accordingly, the entire outer portion of the thrust bearing assembly is resiliently mounted to the well 50A by means of the elements of the lower spring stack 791 A placed about the annulus between well 50A and turret 10A.
- Lower spring stack 791A preferably includes disk springs or belleville washers to provide the resilient support between support bracket 773A and bearing mount structure 788A.
- Support bracket 773A is capable of limited radial movement with respect to stud 775A and nut 777A which fastens an upper spring stack 793A, support bracket 773A, lower spring stack 791 A and bearing mount structure 788A together.
- Guides 776A are placed between the interior space of upper spring stack 793A, lower spring stack 791 A and stud 775A.
- the present invention is particularly directed to the bearing structure mounted on support ring 797A.
- a hydraulic turret drive assembly 592A may be secured to turret 10A.
- a protective housing 594A may be provided for drive assembly 592A.
- Drive assembly 592A drives a segmented bull gear 599A for rotation of support ring 598A and the vessel 50A with respect to turret 10A.
- turret 10A has an upward extending, integral turret ring 102A.
- a segmented key 596A fits within a slot or opening 782A in the outer periphery of turret ring 102A.
- a retainer ring 794A has a lower end which engages shoulder 780A about the outer periphery of turret ring 102A.
- a spacer ring 761 A is positioned between retainer ring 794A and an upper bearing race 580A. Studs 795A are threaded within upper bearing race 580A.
- Nuts 762A about stud 795A secure the upper bearing race 580A, space ring 761 A, retainer ring 794A and segmented key 596A together.
- An epoxy grouting material 781A is positioned in a tapered groove or radial clearance space between the outer surface of turret ring 102A and the inner surface of retainer ring 794A. The grouting material aids in stiffening of turret bearing assembly 760A, especially in the case of improper installation of the segmented keys 596A resulting in the keys not being radially tight against the bottom of the grooves.
- the axial bearing support structure for turret bearing assembly 760A is shown generally at 764A (please refer to Figure 3) and includes a lower bearing support ring 797A having a vessel lower bearing race 586A positioned on top thereof.
- An upper thrust bearing ring 598A and side bearing ring 765A are stacked above lower bearing race 586A.
- Lower rollers 766A are positioned between turret bearing race 580A and vessel lower outer bearing race 586A.
- Upper rollers 767A are positioned between turret bearing race 580A and vessel thrust bearing ring 598A.
- Side rollers 768A are positioned between side bearing ring 765A and inner bearing race 580A.
- rollers 766A, 767A, and 768A Suitable wear pads or hardened surfaces are provided for rollers 766A, 767A, and 768A. Studs 796A and nuts 774A are provided to sandwich vessel lower bearing race 586A, vessel side bearing ring 765A, and vessel upper thrust bearing ring 598A to lower bearing support ring 797A upon tightening of nuts 774A to provide the desired tensioning securement forces of the rotating components.
- a point 783A is shown which is the effective point on a cross section of the combination of the turret/turret ring 10A/102A and turret bearing assembly 760A.
- the turret bearing assembly 760A tends also to rotate clockwise about point 783A due to the geometry and size of the turret 10A and the location of the shoulder 780A in which retainer ring 794A is supported.
- the retainer ring 794A positioned above shoulder 780A with segmented key 596A positioned in peripheral groove 782A of turret ring 102A, functions to stiffen the turret bearing assembly as compared to a design not providing a retainer ring 794A as illustrated.
- segmented key 596A were secured directly to the top of bearing inner race 580A, excessive tilt rotation would result of the bearing assembly 764A with respect to lower bearing race 586A. Furthermore, it is important that the segmented key 596A be positioned above the axis of rotation 783A and bearing race 580A to achieve proper stiffening.
- the retainer ring 596A is stiffened against tilting deflection because the segmented key 596A is positioned to contact the peripheral groove 782A of turret ring
- the grouting material 781 A provides additional resistance to tilt rotation of retainer ring 594A and bearing race 580A.
- the large size of the peripheral groove 782A and segmented key 596A prevents the machining of zero radial clearance fits.
- the turret/turret ring 10A/102A For certain turret-vessel systems, it is desirable for the turret/turret ring 10A/102A to be placed on top of the bearing structure, as shown in Figures 1 and 3, because of structural considerations inside the turret. If a simple flange were to be fabricated onto the turret to rest on the top side of the bearing inner race, (e.g. race 580A of Figure 3), then during installation, the turret/turret ring 10A/102A must be lowered through the bearing assembly (e.g., assembly 764A). In many actual construction situations, scheduling conflicts require that the bearing assembly be available at the shipyard early in the project, if the turret is to be assembled onto the bearing assembly. Often that situation is not possible.
- the arrangement of this invention allows the turret to be first placed in the well of the vessel; the bearing assembly is installed later by lowering it around and over the top of the turret/tur
- the bearing mounting structure 788A and the tu .ret/turret ring 10A/102A are configured as illustrated in Figure 1.
- a bearing assembly 900 (see Figure 6) comprising bearing races 586A, 580A roller bearings 766A, 767A, 768A, spacer ring 761 A, upper thrust bearing ring 598A and side bearing ring 765A is preassembled into an assembled unit 900 by a bearing manufacturer.
- Such assembly 900 is then lowered over the turret/turret ring 10A/102A and secured to lower bearing support ring 797A by means of bolts 796A and nuts 774A.
- one piece retainer ring 794A is positioned and lowered over turret ring 102A with the bottom of retainer ring 794A engaging shoulder 780A on turret ring 102A.
- Epoxy grouting material 781 A is then inserted in the tapered opening or groove formed between the outer peripheral surface of turret ring 102A and the opposed inner peripheral surface of retainer ring 794A.
- segmented keys 596A are positioned within slot 782A about the periphery of turret ring 102A and are forced radially into light contact against turret ring 102A. Studs 795A are threaded within bearing race 580A. Nuts 762A are threaded, preferably by means of a hydraulic tensioner or wrench, onto studs 795A to provide a predetermined tension.
- retainer ring 794A is effective to stiffen the turret assembly 760A by positioning segmented key 596A at a substantial distance above the center of rotation 783A.
- the epoxy grouting material 781 A also provides resistance to tilting of the turret assembly 760A about the center of rotation at 783A.
- each alignment plate 798A may be adjusted radially about the annulus between well 50A and turret 10A so as to provide snug radial support for the turret 10A as it rotates within well 50A with upper spring stack.
- Such adjustment is accomplished by releasing stud 770A and inner nut 771 A, radially moving alignment plate 798A by means of adjustment stud 770A, and then screwing stud 770A into base plate tightly and turning nuts 771 A until they are snug against base plate 799A.
- FIG. 4 an exaggerated illustration of tilting of the turret bearing assembly 760A of the turret 10A is shown. Because the retainer ring 794A and spacer ring 761 A and bearing race 580A combination is relatively stiff when tightly clamped together by stud 795A and nut 762A, the tilt of the upper race 580A is substantially the same as that of lower bearing race 586A. This occurs because the dimensions of the various parts are sized to provide elastic matching of the rotational deflections.
- the dimensions of the turret/turret ring 10A/102A and the dimensions of an upper combination of components including keys 596A, ring 794A, spacer ring 761A and upper bearing assembly 760A are selected to be elasticaliy matched, because such turret/turret ring and such combination rotate approximately through the same angle with relative tilting rotation between the turret and the vessel.
- the dimensions of a lower combination of components including the vessel lower bearing race 516A, side bearing ring 765A, upper thrust bearing ring 598A, lower bearing support ring 797A and support bracket 773A are determined so that rotation of the lower combination is as close to the rotation of the upper
- Figure 5 presents an exaggerated illustration of tilting of the turret bearing assembly 760A where the retainer ring 794A, spacer ring 761A is not stiffened as described above. If the retainer ring 794A, spacer ring 761 A combination is not stiffened, the tilt of the upper race 580A is greater than that of the lower bearing race 586A. As a result, an angle C develops between the upper bearing race 580A and roller bearing 766A which causes edge loading on the support rollers with consequences of increased wear and maintenance expense.
- a bearing support structure 760A for a turret/turret ring assembly 10A.102A which minimizes tilting of the turret assembly with respect to the bearing support structure, thereby minimizing wear on the bearing elements.
- a new method of assembling a turret and a bearing assembly is provided by first installing a turret in a well of the vessel and later installing a preassembled bearing support structure by lowering it over the upper end of the turret and landing the bearing structure on a shoulder of the turret. Fasteners and a segmented ring secure the upper part of the bearing structure to the turret while other fasteners secure the lower part of the bearing structure to the vessel.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Jib Cranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US870247 | 1992-04-17 | ||
US1959596P | 1996-06-17 | 1996-06-17 | |
US19595P | 1996-06-17 | ||
US08/870,247 US5893784A (en) | 1996-06-17 | 1997-06-06 | Bearing support structure for a turret in mooring system and method for its installation |
PCT/US1997/010609 WO1997048595A1 (en) | 1996-06-17 | 1997-06-13 | Bearing support structure for a turret in mooring system and method for its installation |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0906216A1 true EP0906216A1 (en) | 1999-04-07 |
EP0906216A4 EP0906216A4 (en) | 2000-01-05 |
EP0906216B1 EP0906216B1 (en) | 2001-05-16 |
Family
ID=26692382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97930112A Expired - Lifetime EP0906216B1 (en) | 1996-06-17 | 1997-06-13 | Bearing support structure for a turret in mooring system and method for its installation |
Country Status (12)
Country | Link |
---|---|
US (1) | US5893784A (en) |
EP (1) | EP0906216B1 (en) |
JP (1) | JP2002507164A (en) |
CN (1) | CN1246096A (en) |
AU (1) | AU716003B2 (en) |
BR (1) | BR9709831A (en) |
CA (1) | CA2258528C (en) |
DK (1) | DK0906216T3 (en) |
NO (1) | NO314793B1 (en) |
NZ (1) | NZ333442A (en) |
OA (1) | OA10937A (en) |
WO (1) | WO1997048595A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2492100C2 (en) * | 2008-07-17 | 2013-09-10 | Блюуотер Энерджи Сёвисиз Б.В. | Mooring gear |
EP3276197A1 (en) * | 2016-07-26 | 2018-01-31 | ZF Friedrichshafen AG | Position securing device for a rotatable bearing for a shaft |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2365399B (en) * | 1999-05-27 | 2003-01-08 | Single Buoy Moorings | Method of positioning a vessel and vessel provided with turret braking and locking means |
BR0307987A (en) | 2002-02-19 | 2004-12-07 | Fmc Technologies | Vessel |
US7225749B2 (en) * | 2003-07-30 | 2007-06-05 | Sofec, Inc. | Turret mooring system for concrete hull vessel |
NO332014B1 (en) * | 2006-02-02 | 2012-05-21 | Framo Eng As | Geostated docking and riser arrangement in a vessel |
DK1886914T3 (en) * | 2006-08-07 | 2009-06-08 | Bluewater Energy Services Bv | Vessels with mooring system and mooring system |
DE602006005924D1 (en) * | 2006-08-15 | 2009-05-07 | Bluewater Energy Services Bv | Rolling bearing system for installing a turret in a ship |
BR112013030642B1 (en) * | 2011-05-30 | 2021-01-12 | Bluewater Energy Services B.V. | mooring set for a vessel |
US8821202B2 (en) * | 2012-03-01 | 2014-09-02 | Wison Offshore & Marine (USA), Inc | Apparatus and method for exchanging a buoy bearing assembly |
US8950349B2 (en) * | 2012-08-17 | 2015-02-10 | Sofec, Inc. | Replaceable roller bearing |
NL2011922C2 (en) * | 2013-12-09 | 2015-06-11 | Itrec Bv | Hoisting crane and method for refurbishing such a hoisting crane. |
EP2918858B1 (en) * | 2014-03-11 | 2018-11-07 | Bluewater Energy Services B.V. | Assembly of two concentric parts and a bearing between said parts |
CN104976325B (en) * | 2014-04-02 | 2018-01-26 | 华中科技大学 | A kind of bearing hole system method for arranging of the rotary axis for complying with sag curve |
NL2016617B1 (en) * | 2016-04-15 | 2017-11-02 | Itrec Bv | Slew bearing, method for using a slew bearing, hoisting crane and vessel |
DK3464051T3 (en) | 2016-05-24 | 2020-03-23 | Bluewater Energy Services Bv | TOWER ASSEMBLY |
NO343393B1 (en) | 2016-11-17 | 2019-02-18 | Apl Tech As | Exchangeable rail system for large turret bearing |
NO342776B1 (en) | 2016-12-23 | 2018-08-06 | Apl Tech As | Structural suspension of radial turret bearings |
US10046834B1 (en) * | 2017-08-16 | 2018-08-14 | Sofec, Inc. | Replaceable element roller bearing assembly |
KR101988533B1 (en) * | 2017-09-27 | 2019-06-12 | 삼성중공업 주식회사 | Turret mooring system |
US10183727B1 (en) | 2017-10-04 | 2019-01-22 | Sofec, Inc. | In-situ turret bearing repair and assembly |
US10538291B2 (en) * | 2017-11-15 | 2020-01-21 | Sofec, Inc. | In situ turret bearing remediation and assembly |
US10767704B2 (en) | 2018-02-05 | 2020-09-08 | Trendsetter Vulcan Offshore, Inc. | Bearing repair under high loading condition |
DE102018206065A1 (en) * | 2018-04-20 | 2019-10-24 | Aktiebolaget Skf | Roller bearing for supporting a radial deformation of the roller bearing and Rotatiionsanordnung with such a roller bearing |
EP3835194A1 (en) | 2019-12-13 | 2021-06-16 | Bluewater Energy Services B.V. | Assembly of a vessel and a turret |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1959596A (en) | 1933-02-23 | 1934-05-22 | Philip De L Patterson | Flash-light timing device for cameras |
US4305341A (en) * | 1979-10-09 | 1981-12-15 | Chicago Bridge & Iron Company | Spindle moored ship |
US5356321A (en) * | 1991-09-27 | 1994-10-18 | Sofec, Inc. | Disconnectable mooring system |
-
1997
- 1997-06-06 US US08/870,247 patent/US5893784A/en not_active Expired - Lifetime
- 1997-06-13 DK DK97930112T patent/DK0906216T3/en active
- 1997-06-13 AU AU34018/97A patent/AU716003B2/en not_active Ceased
- 1997-06-13 CN CN97196680A patent/CN1246096A/en active Pending
- 1997-06-13 WO PCT/US1997/010609 patent/WO1997048595A1/en active IP Right Grant
- 1997-06-13 CA CA002258528A patent/CA2258528C/en not_active Expired - Fee Related
- 1997-06-13 JP JP50331998A patent/JP2002507164A/en active Pending
- 1997-06-13 EP EP97930112A patent/EP0906216B1/en not_active Expired - Lifetime
- 1997-06-13 BR BR9709831A patent/BR9709831A/en not_active IP Right Cessation
- 1997-06-13 NZ NZ333442A patent/NZ333442A/en unknown
-
1998
- 1998-12-14 NO NO19985865A patent/NO314793B1/en unknown
- 1998-12-16 OA OA9800238A patent/OA10937A/en unknown
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO9748595A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2492100C2 (en) * | 2008-07-17 | 2013-09-10 | Блюуотер Энерджи Сёвисиз Б.В. | Mooring gear |
EP3276197A1 (en) * | 2016-07-26 | 2018-01-31 | ZF Friedrichshafen AG | Position securing device for a rotatable bearing for a shaft |
Also Published As
Publication number | Publication date |
---|---|
NO985865D0 (en) | 1998-12-14 |
NO314793B1 (en) | 2003-05-26 |
NZ333442A (en) | 2000-03-27 |
CA2258528C (en) | 2002-11-19 |
NO985865L (en) | 1999-02-12 |
JP2002507164A (en) | 2002-03-05 |
BR9709831A (en) | 1999-08-10 |
OA10937A (en) | 2003-02-26 |
EP0906216B1 (en) | 2001-05-16 |
DK0906216T3 (en) | 2001-09-10 |
CN1246096A (en) | 2000-03-01 |
AU3401897A (en) | 1998-01-07 |
AU716003B2 (en) | 2000-02-17 |
CA2258528A1 (en) | 1997-12-24 |
WO1997048595A1 (en) | 1997-12-24 |
EP0906216A4 (en) | 2000-01-05 |
US5893784A (en) | 1999-04-13 |
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